Henry s



H. S. GEORGE.

Cooking Stove.

Patented July 8, 1856.

n. PETERS. Phnln-Lihogmpm Washinglm n. c

UNITED STATES EATENT oEEioE.

HENRY S. GEORGE, OF SYRACUSE, NEW YORK, ASSIGNOR TO HENRY S. GEORGE AND GEORGE GRATTON.

COOKING-STOVE.

Specification of Letters Patent No. 15,318, dated July 8, 1856.

To all whom it may concern Be it known that I, HENRY S. GEORGE, of the city of Syracuse, in the county of Onondaga and State of New York, have invented a new and useful Improvement in Cooking Stoves and Ranges; and I do hereby declare the following to be full, clear, and exact description of the construction and operation of the same, reference being had to the anneXed drawings, making part of this specification.

The nature of my invention consists in providing cooking stoves and ranges with such an arrangement of flues as to cause the passage of a current of highly heated air either around the oven between the ovenplates and smoke flues, or into the ash-pit under the fire, or grate for the supply of the draft of the fire; and also in a method of heating the air for this purpose.

My invention may be embraced in any of the forms of cooking stoves or ranges in general use at this time, and adapted to either wood or coal.

My fire chamber is surrounded by iron plates having vertical corrugations or flutes as shown at plate (9), which are made large for the purpose of compensating for the expansion and contraction of the iron, and also to afford as large a heating surface as possible. The flutes (2) on the external surface of the fire plate are used as flues connecting at the bottom with corresponding openings in the bottom plate of the stove, and at the top with a circular chamber (5) which is placed over the flues (2), and sufliciently below the top plate of the stove as not to interfere with the bottom of kettles placed over the fire.

I place a central flue (18) in the center of the fire boX connected at the bottom with an opening in the bottom plate, and having an elbow at the top turning back and connecting with the circular chamber (5).

I place the oven in rear of the fire box in the usual manner, and pass the smoke and products of the fire around it in flues, first over it in one broad sheet, and thence down the back in side flues (D), thence forward under the oven in side flues (EF), thence into a center return flue (G) to the upright center flue (H) at the back of the stove connecting with the chimney pipe.

Between the smoke flues and the oven I place a hot-air flue connected with the flues (2) by the circular flue (5) and with the central flue (18) at the upper and front corner of the oven. This hot air flue I make to extend around the oven, and extend it back through the rear plate of the stove at the two points (7-7).

The operation is as follows: Cold air passes upward through the side flues (2) and center flue (18) when it comes in contact" with the heated surface of the fire plates and becomes highly heated and passes through the chamber (5) over and around the fire, and also through the elbow on the top of the center flue, it then passes into the flue surrounding the oven,.and out of the stove at the outlets (7-7), either into the room, or by opening dampers (17) the hot air flue may be connected with the smoke pipe to create a greater draft of air around the oven. I place dampers (8 and 9) at the upper and lower front corners of the oven in the hot air flue for the purpose of turning the current of hot air either over or under the oven at pleasure. By closing both dampers (8 and 9) in the hot air flue of the oven, and closing the cold air fire-draft, it is obvious the fire-draft will then be supplied through the flues (2) and (18) with heated air.

The object of passing the flue (18) through the fire is to have it heated by the central or hottest portion of the fire, and to gain extent of the heating surface. The object of passing the heated air around the oven, between the smoke flues and the oven plates, is to prevent the too direct action of the fire upon the oven-plates; to prevent burning in the oven; and to get a more regular, or uniform heat upon all sides. The object of passing the hot air from the flue in the front of the oven, through the flue as shown'at (10) into the ashpit and under the grate or fire, is to supply the fire with a hot air draft instead of a cold air draft as in the common way, the air being heated by the same fire to which it supplies the draft.

I disclaim when separately considered, the passing of hot air between the oven plates and the passage for the products of combustion. Also the placing of air flues through and around the fire chamber, and the supplying of the fire draft with heated air. But

I claim as new and of my own invention I supplying the fire draft with hot air; the

and desire to secure by Letters Patent- Whole operating as, and for the purposes 10 lhe arrangement substalilitialbg as helreinspecified.

be ore set forth of the air ues 18 an 25) v 5 through and around the fire chamber and HENRY GEORGE the hot air channel (6) between the oven Witnesses:

plates and the passage for the products of R. F STEVENS,

combustion, With the dampers (8 and 9) for WV. E. POMEROY. 

